\begin{tikzpicture}
    \tkzDefPoints{0/0/B, 3/0/C, -0.7/2.0/A, 2.3/2.0/D}

    \tkzDrawPolygon(A,B,C,D)
    \tkzDrawSegments(A,C)
    \tkzMarkAngles[size=0.6](C,A,D  A,C,B)
    \tkzLabelAngle[pos=0.9](C,A,D){$1$}
    \tkzLabelAngle[pos=0.9](A,C,B){$2$}
    \tkzLabelPoints[left](A,B)
    \tkzLabelPoints[right](D,C)
\end{tikzpicture}

